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DBMS > chDB vs. LMDB

System Properties Comparison chDB vs. LMDB

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Our visitors often compare chDB and LMDB with DuckDB, Databricks and ClickHouse.

Editorial information provided by DB-Engines
NamechDB  Xexclude from comparisonLMDB  Xexclude from comparison
DescriptionAn embedded SQL OLAP Engine powered by ClickHouseA high performant, light-weight, embedded key-value database library
Primary database modelRelational DBMSKey-value store
Secondary database modelsTime Series DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.15
Rank#322  Overall
#142  Relational DBMS
Score1.75
Rank#127  Overall
#20  Key-value stores
Websitegithub.com/­chdb-io/­chdbwww.symas.com/­symas-embedded-database-lmdb
Technical documentationdoc.chdb.iowww.lmdb.tech/­doc
DeveloperSymas
Initial release20232011
Current release0.9.32, January 2024
License infoCommercial or Open SourceOpen Source infoApache Version 2.0Open Source
Cloud-based only infoOnly available as a cloud servicenono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageC
Server operating systemsserver-lessLinux
Unix
Windows
Data schemeschema-free
XML support infoSome form of processing data in XML format, e.g. support for XML data structures, and/or support for XPath, XQuery or XSLT.no
Secondary indexesno
SQL infoSupport of SQLClose to ANSI SQL (SQL/JSON + extensions)no
Supported programming languagesBun
C
C++
Go
JavaScript (Node.js)
Python
Rust
.Net
C
C++
Clojure
Go
Haskell
Java
JavaScript (Node.js)
Lisp
Lua
MatLab
Nim
Objective C
OCaml
Perl
PHP
Python
R
Ruby
Rust
Swift
Tcl
Server-side scripts infoStored proceduresno
Triggersno
Partitioning methods infoMethods for storing different data on different nodesnone
Replication methods infoMethods for redundantly storing data on multiple nodesnone
MapReduce infoOffers an API for user-defined Map/Reduce methodsno
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate Consistency
Foreign keys infoReferential integrityno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACID
Concurrency infoSupport for concurrent manipulation of datayes
Durability infoSupport for making data persistentyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yes
User concepts infoAccess controlno

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More resources
chDBLMDB
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